%%
%% The LaTeX Companion, 3ed
%%
%% Example 3-6-17 on page I-249 in "Customizing the editorial markup commands".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{145.0pt}

  \setlength\parindent{0pt}

  \sloppy

  \setlength\marginparwidth{40pt}
  \addtolength\textwidth{-\marginparwidth} % make room on the page
  \addtolength\textwidth{-\marginparsep}   % in the book example


%StartShownPreambleCommands
\usepackage{changes}
\definechangesauthor[color=red,name=Frank]{FMi}
\setcommentmarkup{\todo[size=small,textcolor=authorcolor,
    linecolor=authorcolor,backgroundcolor=white,nolist]
  {\IfIsAnonymous{#2}{}%
       {\textbf{[#3\,\arabic{authorcommentcount}]} }#1}}
%StopShownPreambleCommands

\begin{document}
 Sample text, \added[comment=maybe]{something} added,
 a \replaced[id=FMi,comment=really?]{blob}{word}
 replaced and \deleted[id=FMi]{some} stuff removed.
\end{document}
